Tall style: Don't expand (single-element?) lists to multiline if you don't have to

[nex3]

I dislike the fact that the single-element list is expanded here:

void main() {
  ComplexSelector(complex.leadingCombinators, [
    component,
  ], complex.span, lineBreak: false);
}

I'd prefer this:

void main() {
  ComplexSelector(
    complex.leadingCombinators,
    [component],
    complex.span,
    lineBreak: false
  );
}

I think generally I'd prefer the latter style until the list is too long to fit on one line, but I can swallow the former more easily as long as the list has more than one element.

[dcharkes]

Might be related to:

• [tall style] int lists spanning many lines #1540